组装的前制动器膜片摇臂室
assembled front brake rotochamber
损坏的制动器控制阀
damaged brake control valve
分动的制动器附件
independent brake attachment
永久磁铁驱动的制动器
permanent-magnet-actuated brake
停放制动器膜片转臂室
parking brake rotochamber
弹簧制动器的辅助放松装置
auxiliary release device for spring-brake actuator